— I can’t get through to the general manager’s office.—The line is busy. Someone ________ the telephone.
#76155
A
must have used
B
could use
C
could have used
D
must be using
推荐题目
— It’s the office! So you know eating is not allowed here.— Oh, sorry.
#74282
A
must
B
will
C
may
D
need
--What do you think of the book you borrowed from the library yesterday? --I have no idea. I____________ read it.
#77721
A
don’t
B
can’t
C
haven’t
D
am not going to
—Did you visit the museum last week? —No, we _____, but we spent too much time shopping.
#63371
A
could have
B
could
C
must have
D
must
— Mum, would you please buy me an MP5 player? — If you can help do the dishes the whole vacation, you ______ have one as a reward.
#62188
A
would
B
shall
C
may
D
must